package com.wang.模式.结构.适配器;//适配器类

public class VoltageAdapter extends Voltage220V implements IVoltage5V {
    @Override
    public int output5V() {
//获取到 220V 电压
        int srcV = output220V();
        int dstV = srcV / 44; //转成 5v
        return dstV;
    }
}